I am not sure how well known Wallace & Gromit are outside the UK but here they have been an institution for close to 40 years.
The Harris Museum in my home city of Preston has just undergone a major refurbishment and will open this Sunday with a new exhibition about the pair. Nick Park, the inspiration behind them comes from a couple of miles from where I live (I know a friend who was at school with him) and he will open the exhibition this Sunday. Tickets are sold out for that day but will be readily available for free for the rest of the run into the New Year with only a need to book at weekends.
Preston wouldn't normally be on anyone's list of places to visit but if you are interested it can be easily fitted into a visit to Northern England (and it is on the doorstep of some fabulous but under appreciated countryside). By car the M6 passes right by the city and the train station is a major stop on the London to Glasgow West Coast line.
https://theharris.org.uk/product/wallace-gromit-in-a-case-at-the-museum-exhibition/